diff --git a/.gitignore b/.gitignore
index 5311e53..6a9ec1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *~
 SpaceScooterUML.asta.bak
+SpaceScooterUML.asta.lock
 .~*#
diff --git a/SpaceScooterUML.asta b/SpaceScooterUML.asta
index a5d6a39..ec85b98 100644
Binary files a/SpaceScooterUML.asta and b/SpaceScooterUML.asta differ